Grin transactions are privacy preserving, so no address, no amounts, but yes transactions can be linked through their outputs. Having a daily coinswap will solve these issues 90%, since you can never proof a coinswap did not happened somewhere in the transaction graph since with Schnorr signatures they look identical to any other transaction…
If in the future more people start using Grin, coinswap could become default. See here a great post from @phyro on the possible road to make Grin even more private and awesome over the years: